128372608512 has 640 divisors, whose sum is σ = 409173811200. Its totient is φ = 39680409600.

The previous prime is 128372608499. The next prime is 128372608597. The reversal of 128372608512 is 215806273821.

128372608512 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 72 + 60 + 8 + 512 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1624969689 + ... + 1624969767.

It is an arithmetic number, because the mean of its divisors is an integer number (639334080).

Almost surely, 2^128372608512 is an apocalyptic number.

128372608512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128372608512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204586905600).

128372608512 is an abundant number, since it is smaller than the sum of its proper divisors (280801202688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128372608512 is an equidigital number, since it uses as much as digits as its factorization.

128372608512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 128372608512 in words is "one hundred twenty-eight billion, three hundred seventy-two million, six hundred eight thousand, five hundred twelve".